Improvement in tenoning-machines



ZSh'eetS--Sheet l.

.|. RICHARD S.

Tanning-Machines.

Patented` Nov. H, 1873` "2 Sheets--Sheet 2.

l. RICHARDS. Tunning-Machines.

\ UNITED STATES PATENT QEEICE JOHN RICHARDS, OF PHILADELPHIA,PENNSYLVANIA.

IMPROVEMENT IN TENONING-MACHINES.

S pecication forming part of Letters Patent No. 144,41 l, dated November11, 1873 application filed October 16, 1873.A

To all whom it may concern:

Be it known that I, JOHN RrcnARns, of Philadelphia, Pennsylvania, haveinvented a Tenoning-Machine, of which the following is a specification yThe nature of my invention consists in certain improvements in machinesfor tenoning wood-work; and constitutes still further improvements inthe same class of tenoning-machines on which Letters Patent weremgranted to J ohn Richards, the present petitioner, and Lucien H. Berry,as joint inventors, and bearing date of October 7, 1873. The principleof operation, so far as the attainment of certain results, is the samein this invention as in the former one cited, and the improvementsrelate to a dijferent and more simple arrangement of the mechanism, theobjects' being, lirst, toreduce the height of the machine, and therebysave material used in the framing, and secure a betterfoundation-support for the machine; secondly, to avoid the necessity ofcounterweighting or balancing the cutter-spindle and its attachments;and to avoid, also, the danger that may arise from the breaking of thebelt-chain or other connection by which the counter-weight is suspended.

In the drawings, Figure l is a front view of a tenoningmaehine embodyingmy improvements. Fig. 2 is a side view ofthe same, and Fig. 3 a plan ortop view of the machine.

A is the main frame, made, by preference, of iron. F F are short tables,bolted to each side of the main frame A, to support the lumber G.

d is the cutter-spindle, and e the cutter-heads.

I I are clamps, to hold the lumber when acted upon by the cutters. m isa strong sliding frame, moving in guides formed in the main frame A, andis operated by the screw n and the crank O, which serves to draw theframe m, with the cutters, across the end of the lumber C, formingtenons, as will be hereafter more fully explained. 1' is the drivenpulley, and s the driving-belt, which passes to the spindlepulley lrfrom another pulley, `with its axis in a horizontal position. t and uare brackets, to support the spindle d-one placed on the top,

and the Vother on the under side, of the frame l m. A single one ofthese brackets is, in most cases, all that is required-the bottom one,t, by preference-leaving the top of the spindle d free to receive cutterheads or tools without removing the bearing B.

The operation of the machine is as follows: To tenon a piece at eachend, the cutter-spindle d and cutters c are brought forward to theposition indicated by dotted lines in Fig. 2. The lumber is thenV placedin position on the tables F, on either side of the machine, as thedirection of rotation may determine, and is clamped by the screws I. Thecutters are then moved away from the operator, and across the end of thelumber (l, by turningthe handle O until the cutters are entirely behindthe lumber C, as shown in the full position, Fig. 2. This permits thelumber (lv to slide past the cutters until it reaches a proper positionto form the tenons at the other end, w, the first tenons, a', beingalready completed. The frame m and the cutters e are next broughtforward to the position from which they were irst moved to make thetenons w, and are ready to operate upon the first end of a second piece.

Having thus described the nature of my invention, and the manner ofoperating the same, p

I claim- The combination of a sliding frame, fm, with a verticalspindle, d, and the two tables F F in a woodtenoning machine, arrangedand operating substantially as hereinbefore specified.

JOHN RICHARDS. Witnesses:

L. H. BERRY, JAs. S. CRoss.

